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This effect reproduces the sound of Roland’s SDD-320 spatial 
expression effects. Greater breadth is added.

fig.MFX-18

Hexa-chorus is a six-stage chorus which adds depth and 
spaciousness to the sound. (Six chorus sounds with different delay 
times are overlaid.) An equalizer is provided before (Pre) and after 
(Post) the hexa chorus.

fig.MFX-19

This effect reproduces the sound of Roland’s SBF-325 analog flanger. 
You can get three different types of flanger sounds (adding a 
metallic swelling sound to the source sound) and chorus like effect.

fig.MFX-20

Mode

1, 2, 3, 4, 1+4, 
2+4, 3+4

Selects the way in the chorus 
will change.
The SDD-320 features four 
mode buttons for changing the 
effect. This setting determines 
which buttons are to be pressed. 
(“1+4” represents the condition 
when Buttons 1 and 4 are 
pressed simultaneously.)

Chorus Level #1 0–127

Volume level of the chorus 
sound

Ps Low Freq

50–4000 Hz

Frequency of the low range

Ps Low Gain

-15– +15 dB

Gain of the low range

Ps Hi Freq

2000–20000 Hz

Frequency of the high range

Ps Hi Gain

-15– +15 dB

Gain of the high range

Pre Dly Time

0–50.0 ms

Adjusts the delay time from the 
direct sound until the chorus 
sound is heard.

Pre Dly Dev

0–50.0 ms

Specifies the differences in Pre 
Delay time for each of the chorus 
sounds

Rate #1

0.05–10.0 Hz, 
note

Specifies the modulation fre-
quency of the chorus sound.

Depth

0–127

Specifies the modulation depth 
of the chorus sound.

Depth Devia-
tion

0–127

Specifies the difference in mod-
ulation depth between each of 
the chorus sounds.

L

R

Space

Chorus

2-Band

EQ

L

R

2-Band

EQ

Hexa

Chorus

2-Band

EQ

Pan Deviation

L63–63R

Specifies the difference in stereo 
position between each of the 
chorus sounds.
0: All of the chorus sounds will 
be panned to the center.
L20/R20: each chorus sound 
will be placed in 30 degree inter-
vals relative to the center posi-
tion.

Chorus Level #2 0–127

Volume level of the chorus 
sound

Pre Low Freq

50–4000 Hz

Frequency of the low range (Pre)

Pre Low Gain

-15– +15 dB

Gain of the low range (Pre)

Pre Hi Freq

2000–20000 Hz

Frequency of the high range 
(Pre)

Pre Hi Gain

-15– +15 dB

Gain of the high range (Pre)

Ps Low Freq

50–4000 Hz

Frequency of the low range

Ps Low Gain

-15– +15 dB

Gain of the low range

Ps Hi Freq

2000–20000 Hz

Frequency of the high range

Ps Hi Gain

-15– +15 dB

Gain of the high range

Mode

FL1, FL2, FL3, 
CHO

Sets the effect type.
FL1: A general monaural flanger
FL2: A stereo flanger that utiliz-
es the stereo placement of the 
source sound
FL3: A cross mix flanger that 
providing a more intense effect
CHO: Chorus effect

Rate #1

0.02–5.00 Hz, 
note

Sets the rate of the swelling of 
the flanger sound.

Depth #2

0–127

Specifies the modulation depth 
of the flanger sound.

Manual

0–127

Adjusts the center frequency to 
which the flanger effect is ap-
plied.

Feedback #3

0–127

Sets the intensity of the flanger’s 
effect.

CH-R Mod 
Phase

NORM, INV

Sets the phase of the right chan-
nel.
This is usually set to Normal 
(NORM). Setting this to Invert 
(INV) inverts the phase of the 
modulation (rise and fall) in the 
right channel.

CH-L Phase

NORM, INV

Sets the phase of the left and 
right channels when the source 
sound is mixed with the flang-
ing sound.
NORM: Positive phase (+)
INV: negative phase (-)

CH-R Phase

L

R

Analog

Flanger